Date: Wed, 11 Nov 1998 20:26:28 +1100 (EST) From: Tony Maher <tonym@angis.usyd.edu.au> To: andreas@klemm.gtn.com Cc: current@FreeBSD.ORG Subject: Re: Travan TR4 dump/restore Message-ID: <199811110926.UAA29192@morgan.angis.su.OZ.AU>
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> my personal experience was, that it's now safe with CAM to use
> blocksizes over 32 .... Since physio (if I remember right) was
> done in 32 blocks chunks even is you choose 64 or more ...
Justed dumped whole system again this time using 32 instead of 64.
dump 0uabf 32 /dev/nrsa0 /
dump 0uabf 32 /dev/nrsa0 /usr
dump 0uabf 32 /dev/nrsa0 /var
dump 0uabf 32 /dev/nrsa0 /n/01
dump 0uabf 32 /dev/nrsa0 /n/02
mt -f /dev/nrsa0 fsf 2
restore ivf /dev/nrsa0
and extracted subdirectory perfectly.
It definitely didnt like 64 blocks last nite.
Maybe something about this particular drive?!
sa0: <Seagate STT8000N 3.22> Removable Sequential Access SCSI2 device
Well as long as it backups up the files ;-)
I'll put the old drive back on later tonite if I get the chance
and try it again with 32 blocks.
Reading sa (4) man page
The block size used may be any value supported by the device,
the SCSI adapter and the system (usually between 1 byte and 64 Kbytes,
sometimes more).
Pretty sure the old drive under 2.2.-stable supported 64 (hard to test now).
thanks again.
tonym
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